Here is a link to one of the better articles I’ve seen about the Willow project, from the AP.
The New York Times reported today that the likely legal battle was a major factor in Biden’s decision.
If the link doesn’t work, you could try Googling Lisa Freedman’s article “How Biden Got From ‘No More Drilling’ To Backing A Huge Project In Alaska.” (I’m not sure how many times I can share the link.)